go on to release the electric concept G4e at the Tokyo Motor Show in late 2007 as a follow-up to the R1e with an improved battery, range, and bolder styling. By February 2008, TEPCO was using 40 R1e electric vehicles commercially, and Subaru announced that 100 R1e vehicles would be test marketed in Japan during 2009. Two R1e electric vehicles were adopted into the New York Power Authority fleet in March 2008. The R1e's propulsion design and experience were incorporated into a plug-in Stella prototype exhibited in June 2008, and FHI announced plans to test-market electric Stella vehicles during the upcoming 2009 fiscal year. Technical The R1e used a laminated lithium-ion battery which was developed by NLE, a joint venture established by FHI with NEC. The design goal was for of city driving range using a designed capacity of 8 kW-hr with a top speed of , and a battery life goal of retaining at least 80% of initial capacity after seven years or . Measured performance of the battery pack included a recharge capability to 80% capacity in eight minutes with a special rapid charger using 200 V, or to 100% charge in eight hours on a standard 100 V plug. Battery life is at least 10 years or . TEPCO planned on producing 150 fast-charge stations. See also Hitachi Maxell Subaru R1 Subaru G4e References External links nbcnews.com article concerning limited production placement with an electric utility Production electric cars Electric city cars Electric concept cars R1e R1e